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Location: alysbrooks-public/games/isometric-park-fna/FNA/src/Graphics/PackedVector/Short4.cs - annotation

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Commit Description:
Various UI improvements.
Commit Description:
Various UI improvements.
References:
r291:6a7d5e8510b1 default
File last commit:
r0:e33f209de7e5 default
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FNA/src/Graphics/PackedVector/Short4.cs
197 lines | 5.3 KiB | text/x-csharp | CSharpLexer
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alys
Early working version (including all dependencies, lol).
 r0 #region License
/* FNA - XNA4 Reimplementation for Desktop Platforms
* Copyright 2009-2020 Ethan Lee and the MonoGame Team
*
* Released under the Microsoft Public License.
* See LICENSE for details.
*/
#endregion
#region Using Statements
using System;
#endregion
namespace Microsoft.Xna.Framework.Graphics.PackedVector
{
/// <summary>
/// Packed vector type containing four 16-bit signed integer values.
/// </summary>
public struct Short4 : IPackedVector<ulong>, IEquatable<Short4>
{
#region Public Properties
/// <summary>
/// Directly gets or sets the packed representation of the value.
/// </summary>
/// <value>The packed representation of the value.</value>
[CLSCompliant(false)]
public ulong PackedValue
{
get
{
return packedValue;
}
set
{
packedValue = value;
}
}
#endregion
#region Private Variables
private ulong packedValue;
#endregion
#region Public Constructors
/// <summary>
/// Initializes a new instance of the Short4 class.
/// </summary>
/// <param name="vector">
/// A vector containing the initial values for the components of the Short4 structure.
/// </param>
public Short4(Vector4 vector)
{
packedValue = Pack(vector.X, vector.Y, vector.Z, vector.W);
}
/// <summary>
/// Initializes a new instance of the Short4 class.
/// </summary>
/// <param name="x">Initial value for the x component.</param>
/// <param name="y">Initial value for the y component.</param>
/// <param name="z">Initial value for the z component.</param>
/// <param name="w">Initial value for the w component.</param>
public Short4(float x, float y, float z, float w)
{
packedValue = Pack(x, y, z, w);
}
#endregion
#region Public Methods
/// <summary>
/// Expands the packed representation into a Vector4.
/// </summary>
/// <returns>The expanded vector.</returns>
public Vector4 ToVector4()
{
return new Vector4(
(short) (packedValue & 0xFFFF),
(short) ((packedValue >> 16) & 0xFFFF),
(short) ((packedValue >> 32) & 0xFFFF),
(short) (packedValue >> 48)
);
}
#endregion
#region IPackedVector Methods
/// <summary>
/// Sets the packed representation from a Vector4.
/// </summary>
/// <param name="vector">The vector to create the packed representation from.</param>
void IPackedVector.PackFromVector4(Vector4 vector)
{
packedValue = Pack(vector.X, vector.Y, vector.Z, vector.W);
}
#endregion
#region Public Static Operators and Override Methods
/// <summary>
/// Compares the current instance of a class to another instance to determine
/// whether they are different.
/// </summary>
/// <param name="a">The object to the left of the equality operator.</param>
/// <param name="b">The object to the right of the equality operator.</param>
/// <returns>True if the objects are different; false otherwise.</returns>
public static bool operator !=(Short4 a, Short4 b)
{
return a.PackedValue != b.PackedValue;
}
/// <summary>
/// Compares the current instance of a class to another instance to determine
/// whether they are the same.
/// </summary>
/// <param name="a">The object to the left of the equality operator.</param>
/// <param name="b">The object to the right of the equality operator.</param>
/// <returns>True if the objects are the same; false otherwise.</returns>
public static bool operator ==(Short4 a, Short4 b)
{
return a.PackedValue == b.PackedValue;
}
/// <summary>
/// Returns a value that indicates whether the current instance is equal to a
/// specified object.
/// </summary>
/// <param name="obj">The object with which to make the comparison.</param>
/// <returns>
/// True if the current instance is equal to the specified object; false otherwise.
/// </returns>
public override bool Equals(object obj)
{
return (obj is Short4) && Equals((Short4) obj);
}
/// <summary>
/// Returns a value that indicates whether the current instance is equal to a
/// specified object.
/// </summary>
/// <param name="other">The object with which to make the comparison.</param>
/// <returns>
/// True if the current instance is equal to the specified object; false otherwise.
/// </returns>
public bool Equals(Short4 other)
{
return this == other;
}
/// <summary>
/// Gets the hash code for the current instance.
/// </summary>
/// <returns>Hash code for the instance.</returns>
public override int GetHashCode()
{
return packedValue.GetHashCode();
}
/// <summary>
/// Returns a string representation of the current instance.
/// </summary>
/// <returns>String that represents the object.</returns>
public override string ToString()
{
return packedValue.ToString("X");
}
#endregion
#region Private Static Pack Method
/// <summary>
/// Packs a vector into a ulong.
/// </summary>
/// <param name="vector">The vector containing the values to pack.</param>
/// <returns>The ulong containing the packed values.</returns>
static ulong Pack(float x, float y, float z, float w)
{
return (ulong) (
((long) Math.Round(MathHelper.Clamp(x, -32768, 32767)) & 0xFFFF ) |
(((long) Math.Round(MathHelper.Clamp(y, -32768, 32767)) << 16) & 0xFFFF0000) |
(((long) Math.Round(MathHelper.Clamp(z, -32768, 32767)) << 32) & 0xFFFF00000000) |
((long) Math.Round(MathHelper.Clamp(w, -32768, 32767)) << 48)
);
}
#endregion
}
}